ASROCK B860 Pro-A
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ASROCK B860 Pro-A
The ASROCK B860 Pro-A motherboard, with its Intel B860 chipset and LGA 1851 socket, provides the foundation for Intel Core Ultra Series 2 processors in an ATX format. It features a robust 10+1+1+1+1 phase power delivery system with Dr.MOS technology, ensuring stable power to all parts of the processor. The board supports four DDR5 slots in a dual-channel configuration with frequencies up to 8666MHz (OC) and a maximum capacity of 256GB. For expansion cards, there is a PCIe 5.0 x16 slot for graphics and a PCIe 4.0 x16 slot in x4 mode, complemented by three M.2 slots—one Gen5 x4 and two Gen4 x4. Storage can be connected via four SATA III connectors, while network connectivity is handled by a Realtek 2.5G LAN interface with transfer speeds of up to 2.5Gb/s.
Intel B860
Chipset
Intel 1851
Socket
ATX
Format
DDR5
Memory type
4×
Number of RAM slotsKey features of the ASROCK B860 Pro-A motherboard
- Advanced 10+1+1+1+1 phase power delivery with Dr.MOS technology ensures a stable power supply to the processor and controllers
- Support for DDR5 memory up to 8666MHz when overclocked, with a maximum capacity of 256GB
- A fast PCIe 5.0 x16 slot and one M.2 socket with PCIe Gen5 x4 support let you use the latest components
- Realtek 2.5G LAN offers network connectivity with up to 2.5× higher throughput than gigabit ethernet
- USB 3.2 Gen2x2 Type-C with a 20Gb/s transfer speed and rich connectivity with a total of 15 USB ports
- The BIOS Flashback feature enables seamless firmware updates without needing a processor installed
Integrated graphics and multimedia features
The integrated Intel Xe LPG graphics support HDMI 2.1 (4K at 120Hz) and DisplayPort 1.4 with DSC compression up to 8K resolution at 60Hz. The Realtek ALC897 audio codec provides an eight-channel 7.1 CH HD Audio output. There is also an M.2 Key E slot for Wi-Fi and Bluetooth modules with support for Intel CNVio/CNVio2.
Cooling and power
Aluminium heatsinks on critical components effectively dissipate heat during demanding tasks, ensuring system stability even under long-term load. Power is supplied via a 24-pin ATX connector and two high-density 8-pin 12V connectors. For cooling management, there are two four-pin connectors for CPU fans, four connectors for case fans, and one connector for an AIO water cooling pump, all with smart speed control support.
Connectivity and features
The board offers USB 3.2 Gen 2×2 Type-C (20Gb/s), six USB 3.2 Gen 1, and two USB 2.0 ports on the rear panel, complemented by an internal USB-C Gen 1 and other connectors. It supports RAID 0/1/5/10 and Intel VMD for NVMe drives. The BIOS Flashback, Auto Driver Installer, and Post Status Checker features simplify system management. RGB and ARGB lighting is compatible with both Polychrome SYNC and SignalRGB.
Port selection
Storage
- Number of SATA III: 4
- Number of M.2: 3
- M.2 Slot 1 – M.2 PCI-E NVMe Gen5
- M.2 Slot 2 – M.2 PCI-E NVMe Gen4
- M.2 Slot 3 – M.2 PCI-E NVMe Gen4
- Features: RAID 0, RAID 1, RAID 5, RAID 10
USB ports
- Internal USB 2.0: 2
- Internal USB 3.2 Gen 1: 1
- Internal USB-C 3.2 Gen 1: 1
- Rear USB 2.0: 2
- Rear USB 3.2 Gen 1: 6
- Rear USB-C 3.2 Gen 2×2: 1
Graphics
- HDMI 2.1
- DisplayPort 1.4
- Graphics outputs: HDMI, DisplayPort
Sound
- Number of channels: 7.1
- Rear connectors: Line In, Front Speaker, Microphone
Other
- Power: 24pin, 2× 8pin
- Cooling: number of PWM FANs (4-pin) – 6, Water pump – 4-pin
- Internal: RGB LED Header, TPM header, Temperature sensors
- Rear BIOS Flashback
Choosing a motherboard
When choosing a motherboard (also known as a mainboard), it's important to pay particular attention to the motherboard's socket type, format, and chipset. These parameters are among the most crucial and ensure the board's compatibility with the processor, expansion cards, and other components. The specific socket determines the choice of a suitable processor, while the remaining connectors will dictate the selection of other components for your future computer.Specifications
Socket and chipset
Format & functions
Memory
Advanced parameters
Connectors
Compatibility
Colour
| Code: | ASb860p3 |
| Warranty: | 36 months |
| Links: | Producer's Website: |